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1 Introduction and Overview
Pages 9-11

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From page 9...
... Vehicles moving rapidly -- whether in the air, on the surface, or below ground -- are in precari ous and fragile positions; much damage can be done with the introduction of a relatively small and well-placed force. Certain elements of the trans portation infrastructure, such as U.S.-flag carriers and landmark bridges and tunnels, are symbolic to Americans, adding further to their appeal as terror ism targets.
From page 10...
... They are also ubiquitous, moving unnoticed within industrial locations and major population centers and across borders. Their mobility, range, and omnipresence make transportation vehicles a ready means of delivering terrorist weapons, from conventional explosives to unconventional chemical, biological, and radiological agents.
From page 11...
... , but operational and financial responsibilities rested with the private airlines and the airports, owned by state and local govern ments. Security in other modes of land and maritime transportation had been, and largely remains today, the responsibility of state and local law enforce ment authorities, the many public and private entities that own and operate transportation systems, and various federal agencies responsible for port and border security.


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